What is the term for a control striking technique that overstimulates nerves and can cause temporary muscle impairment?

The term that best describes a control striking technique that overstimulates nerves and can cause temporary muscle impairment is "Stunning." This technique specifically targets the nervous system and can lead to a momentary loss of muscular control or responsiveness, which aligns perfectly with the description provided in the question. When executed properly, stunning can incapacitate an opponent temporarily by disrupting their motor functions, making it an effective method in certain self-defense or control scenarios.

In contrast, other options like "Balance Displacement" focus more on destabilizing an opponent’s body position rather than impeding muscle function. "Shocking" is a broader term and doesn’t specifically refer to the motor impairment aspect, while "Motor Dysfunction" is a more general term that describes any loss of motor function without necessarily relating to a specific striking technique. The clarity of the term "Stunning" as it relates to a defined technique makes it the correct choice in this context.